TOOL PATH GENERATING METHOD AND TOOL PATH GENERATING DEVICE

摘要

A tool path generating device for generating a machining program is provided with a determining unit which determines whether or not the effective cutting length of a tool would be insufficient if machining were performed using a first tool path, and an estimating unit which estimates a section of insufficiency, being the section in which the effective cutting length of the tool is insufficient. The tool path generating device is provided with a post-move travel path generating unit which generates a post-move tool path in which the path corresponding to the section of insufficiency has been moved relative to the first tool path to a path whereby the section of insufficiency can be machined using the section of the tool within the effective cutting length, and an auxiliary path generating unit which generates an auxiliary tool path for machining the uncut section remaining in the workpiece.

主权项

1. A tool path generation method for generating a tool path for machining a workpiece by a machine tool, wherein
a first tool path for machining the workpiece is set in advance, and the tool path generation method comprises: a judgement step for judging whether or not an effective blade length of a tool is insufficient when machining is performed through the first tool path based on the first tool path and a shape of the workpiece; an estimation step for estimating an insufficient portion in which the effective blade length is insufficient when the effective blade length of the tool is insufficient in the judgement step; a moved path generation step for generating a moved tool path by moving a path of the insufficient portion to a path through which machining can be performed by a portion of the effective blade length with respect to the first tool path; and an auxiliary path generation step for generating an auxiliary tool path for machining an uncut portion remaining on the workpiece after machining is performed through the moved tool path.